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Azzam YA, Elnagahy FIY, Ali GB, Essam A, Saad S, Ismail H, Zead I, Ahmed NM, Yoshida M, Kawabata KS, Akitaya H, Shokry A, Hendy YHM, Takey A, Hamed GM, Mack P. Kottamia Faint Imaging Spectro-Polarimeter (KFISP): opto-mechanical design, software control and performance analysis. Exp Astron (Dordr) 2021; 53:45-70. [PMID: 34658528 PMCID: PMC8510887 DOI: 10.1007/s10686-021-09802-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 09/23/2021] [Indexed: 06/13/2023]
Abstract
In this paper we describe the Kottamia Faint Imaging Spectro-Polarimeter (KFISP) that has been recently developed and designed to be mounted at the Cassegrain focus of the 1.88 m telescope at Kottamia Astronomical Observatory (KAO), Egypt. The optical design of KFISP is developed such that it can be used in various modes of operation. These are: direct imaging, spectroscopic, polarimetric imaging, and spectro-polarimetric. The KFISP is an all-refractive design to meet the polarimetric requirements and includes a focal reducer with a corrector section, collimator section, parallel beam section (containing various imaging components), and camera section. The corrector section gives an unvignetted Field-of-View of 8' × 8' and the collimator section has a focal length of 305 mm and matches the focal ratio of the input beam. The parallel beam section is 200 mm long and near the middle of it there is an image of the telescope pupil. The camera section includes 5 elements and has a focal length of 154.51 mm which gives an instrument effective final focal ratio of f/6.14 (acting as a telescope focal reducer of 1:2 ratio). The KFISP contains an internal calibration system which hosts the calibration light injection system, an integrating sphere equipped with the required calibration light sources. The opto-mechanical parts of KFISP contain a double-layered carbon fiber strut structure and comprises its subsystems of slit and guider assemblies, filter wheel drawer, grism wheel drawer, polarimetric components cubical box, and CCD camera which is integrated with camera optics. The CCD camera has 2048 × 2048 pixels with 13.5-micron square pixel size. The camera is cooled by liquid Nitrogen and is fixed to the KFISP through the integrated camera lens. The KFISP has been fully commissioned, mounted and is being tested in all modes of operation. In this paper we introduce the ambitious scientific goals, the optical setups of KFISP, its opto-mechanical implementation and the performance analysis of the instrument. In addition, we describe the camera system, its performance, and its software control. Finally, we present a sample of the first light observations obtained from the instrument.
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Affiliation(s)
- Yosry A. Azzam
- National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Cairo, 1142 Egypt
| | - F. I. Y. Elnagahy
- National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Cairo, 1142 Egypt
- Kottamia Center of Scientific Excellence for Astronomy and Space Science KCScE, Cairo, Egypt
| | - Gamal B. Ali
- National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Cairo, 1142 Egypt
| | - A. Essam
- National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Cairo, 1142 Egypt
| | - Somaya Saad
- National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Cairo, 1142 Egypt
- Kottamia Center of Scientific Excellence for Astronomy and Space Science KCScE, Cairo, Egypt
| | - Hamed Ismail
- National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Cairo, 1142 Egypt
| | - I. Zead
- National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Cairo, 1142 Egypt
- Kottamia Center of Scientific Excellence for Astronomy and Space Science KCScE, Cairo, Egypt
| | - Nasser M. Ahmed
- National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Cairo, 1142 Egypt
| | - Michitoshi Yoshida
- National Astronomical Observatory of Japan, Subaru Telescope, 650 North A’ohoku Place, Hilo, HI 96720 USA
| | - Koji S. Kawabata
- Hiroshima Astrophysical Science Center, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8526 Japan
| | - Hiroshi Akitaya
- Hiroshima Astrophysical Science Center, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8526 Japan
- Planetary Exploration Research Center, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016 Japan
| | - A. Shokry
- National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Cairo, 1142 Egypt
| | - Y. H. M. Hendy
- National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Cairo, 1142 Egypt
| | - Ali Takey
- National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Cairo, 1142 Egypt
| | - G. M. Hamed
- National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Cairo, 1142 Egypt
- Department of Astronomy and Space Sciences, Istanbul University, Beyazit, 34119 Istanbul, Turkey
| | - Peter Mack
- Astronomical Consultants and Equipment, Inc., Tucson, AZ USA
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Farid A, Haytham M, Essam A, Safwat G. Efficacy of the aqueous extract of Siwa dates in protection against the whole body γ irradiation induced damages in mice. Journal of Radiation Research and Applied Sciences 2021. [DOI: 10.1080/16878507.2021.1963628] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Alyaa Farid
- Zoology Dep., Faculty of Science, Cairo University, Giza, Egypt
| | - Merna Haytham
- Faculty of Biotechnology, October University for Modern Sciences and Arts (MSA), Giza, Egypt
| | - Abdelrahman Essam
- Faculty of Biotechnology, October University for Modern Sciences and Arts (MSA), Giza, Egypt
| | - Gehan Safwat
- Faculty of Biotechnology, October University for Modern Sciences and Arts (MSA), Giza, Egypt
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Hosny M, Hassan M, El Guindy A, El Faramawy A, Abd El Hamid M, Essam A, El Mozy W, Romeih S, Ramadan A, Shaaban M, Yacoub M. P5604The effect of rheolytic thrombectomy on myocardial salvage index in patients with ST segment elevation myocardial infarction and large thrombus burden: a magnetic resonance imaging study. Eur Heart J 2018; 39. [DOI: 10.1093/eurheartj/ehy566.p5604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/02/2023] Open
Affiliation(s)
- M Hosny
- Cairo University, Kasr Al Ainy, Cardiovascular Medicine Department, Cairo, Egypt
| | - M Hassan
- Cairo University, Kasr Al Ainy, Cardiovascular Medicine Department, Cairo, Egypt
| | | | - A El Faramawy
- Cairo University, Kasr Al Ainy, Cardiovascular Medicine Department, Cairo, Egypt
| | - M Abd El Hamid
- Cairo University, Kasr Al Ainy, Cardiovascular Medicine Department, Cairo, Egypt
| | - A Essam
- Aswan Heart Center, Aswan, Egypt
| | | | - S Romeih
- Aswan Heart Center, Aswan, Egypt
| | | | | | - M Yacoub
- Aswan Heart Center, Aswan, Egypt
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